JPH062468U - Card reader / writer device - Google Patents

Abstract

(57) [Abstract] [Purpose] To take measures against static electricity, to prevent cost increase and reduce the thickness of the device without adding any additional parts. [Structure] Card transport wall 10 of lower frame 2 and card transport walls 42, 81 of front and rear upper cases 41, 80
The card transport path 3 is formed by and. A conveyance belt 69 is in close contact with the driven roller 130 and conveys the card 5 back and forth in the card conveyance path 3. 90 and 145 are covers which are in contact with the lower frame 2. The lower frame 2 and the upper cases 41 and 80 are made of synthetic resin in which antistatic members are mixed, and the covers 90 and 1
45 is made of metal.

Description

[Detailed description of the device]

[0001]

[Industrial applications]

 The present invention relates to a card reader / writer device that reads and writes magnetic information recorded on a magnetic card such as a telephone card, and particularly relates to measures against static electricity.

[0002]

[Prior art]

 As a card reader / writer device of this type, in recent years, a device frame is formed of synthetic resin for the purpose of downsizing and weight reduction. That is, the frame is divided into two parts, an upper frame and a lower frame, both of which are made of synthetic resin. For example, a card carrier wall on the lower frame side and a pair of card guide walls erected at both ends of the card carrier wall. On the other hand, the card carrying wall is integrally formed on the upper frame side, and the card carrying path is formed with these both card carrying walls, which is advantageous in that it is suitable for mass production by molding. Have

By the way, generally, in a device having a driving unit, friction is generated between the moving member and the fixed member, and thus static electricity is generated. Even in the card reader / writer device, static electricity is generated between the card and the card carrier wall where the card slides. If the human body is charged with static electricity, the static electricity is brought into the device through the card. If these static electricity stays in the equipment, it may suck dust, dust or cigarette tar in the air and adhere to the sensor, etc., causing sensor failure, or static electricity may flow inside the equipment and cause circuit Runaway, damage, etc. will occur.

[0004]

[Problems to be solved by the device]

 In the conventional card reader / writer device described above, since the upper frame and the lower frame are both made of synthetic resin, the generated static electricity is likely to stay in the device. Since it is provided with or is equipped with a ground wire and the like, there is a problem that it hinders the thinning of the device and an increase in the number of parts, which causes a problem of cost increase. Therefore, the present invention has been made in view of the above-mentioned conventional inconveniences or problems, and the purpose thereof is to take measures against static electricity without adding any additional parts. An object of the present invention is to provide a card reader / writer device which prevents cost increase and makes the device thinner.

[0005]

[Means for Solving the Problems]

 In order to achieve this object, the card reader / writer device according to the present invention is provided with a card carrier wall on one frame and a pair of card guide walls standing on both ends of the card carrier wall, and on the other frame. A card transport wall is provided, and both frames are united to form a card transport path for slidingly transporting a card between the both card transport walls, and at least the surface of the both frames in contact with the card is subjected to antistatic treatment. It is made of synthetic resin and the cover that covers both of these frames is made of metal.

[0006]

[Action]

 According to the present invention, the antistatic treatment is applied to the part that comes into contact with the card that is most likely to generate static electricity. Therefore, static electricity is suppressed and static electricity taken in from the outside of the device is protected by the cover. By contacting with the ground, it flows from the frame through the metallic cover to the main unit and is discharged from the main unit to the outside.

[0007]

【Example】

 An embodiment of the present invention will be described below with reference to the drawings. FIG. 1 is an exploded perspective view of the front side of a card reader device according to the present invention, FIG. 2 is an exploded perspective view of the back side of the same, FIG. 3 is a plan sectional view of essential parts, and FIG. 4 is a sectional view taken along line IV-IV of FIG. 5 is a sectional view taken along line VV of FIG. In these figures, reference numeral 2 is a lower frame entirely made of synthetic resin, on which a card transport wall 10 formed in the center, an enclosure wall 30 provided so as to surround the periphery, and a transport unit 50 are mounted. The transport unit mounting table 32 to be placed and a base plate 36 connecting these are roughly configured. The antistatic member is mixed in the synthetic resin forming the lower frame 2.

Next, the configuration on the front surface side (right side surface side) of the card carrying wall 10 will be described mainly based on FIGS. 1 and 3. A card insertion / return port 11 is formed at the front end (front surface) of the card transfer wall 10, and the front end is chamfered 11a so that the card can be easily inserted. A through hole 12 into which a shutter pin (not shown) of a shutter mechanism 100, which will be described later, is removably inserted is provided at the center of the card transport wall 10 which has advanced from the card insertion / return port 11 in the insertion direction. Further, above and below the card insertion / return port 11, a pair of mounting bases 13 to which a front guide unit 40, which will be described later, is mounted are provided upright from the card transport wall 10. Reference numeral 13a is a mounting hole provided in the mounting base 13. Reference numeral 14 denotes a plurality of ribs projectingly provided on the card transfer wall 10 along the card insertion direction for allowing the card 5 to slide smoothly on the card transfer path 3 with a small frictional resistance. .

A pair of card guide walls 15a and 15b are provided up and down on the upper and lower sides of the card carrying wall 10 at intervals substantially the same as the width of the card. Further, a pair of windows 16 for allowing a driven roller 130, which will be described later, to face the inside of the card transportation path 3 and a notch 17 for accommodating a magnetic head 70, which will be described later, are formed in the central portion of the card transportation wall 10. Has been done. Further, in the rear portion of the card transport wall 10, an inlet 18a is provided in the side wall portion of the notch 17, and an outlet 18b is provided in the upper card guide wall 15b. It is provided so as to cross the transport wall 10. As shown in detail in FIG. 3, the recessed groove 18 has chamfers 18c on the upper opening end side edges, and tongue pieces 18d are alternately projected on both side edges, so that a lead of a magnetic head 70 described later is formed. The line 71 b is held in the recessed groove 18.

Next, the configuration of the back side (left side) of the card transport wall 10 will be described mainly based on FIG. The mounting base 13 is erected up to the back surface side of the card transport wall 10, and the mounting base 13 is provided with a mounting hole 13a on the front surface side and a mounting opening 13b on the back surface side in communication with each other. A boss 21 to which a shutter mechanism 100, which will be described later, is mounted and fixed is formed on the inner surface of the mounting base 13 facing each other so as to project from the back surface of the card transport wall 10. An annular punch unit accommodating portion 22 is provided behind the boss 21, and a through hole 23 is formed in the bottom surface (card carrying wall 10) of the accommodating portion 22.

Around the pair of windows 16 described above, there are formed a protruding protrusion 24 that restricts the rotation direction of the shaft 132 of the driven roller 130, which will be described later, and a protruding protrusion 25 that restricts the axial movement of the shaft 132. Has been done. In addition, a boss 26 to which a pressing spring 135, which will be described later, is mounted, and a mounting projection 27 on which the pressing spring 135 is mounted are formed to project at an intermediate position between the two windows 16.

Next, the configurations of the transport unit mounting table 32 and the base plate 36 will be described mainly based on FIGS. 1 and 2. The transport unit mounting bases 32 are integrally formed on both sides of the card transport wall 10 at positions downward from the front surface to the back surface of the transport wall 10. A pair of positioning protrusions 33 and mounting holes 34 are provided on the front surface side of the mounting table 32. The base plate 36 is disposed substantially at the center of the lower frame 2 in the thickness direction (horizontal direction), and a plurality of two types of bosses 37 and 38 having different heights are formed on the front surface and the back surface so as to project. There is. The higher boss 37 is for fixing covers 90 and 145, which will be described later, and the lower boss 38 is for fixing and fixing wiring boards 85 and 140, which will be described later, respectively.

Next, mainly based on FIGS. 1, 3 and 4, the front guide unit 40, the transport unit 50, the rear upper frame 80, and the wiring board 85 which are attached to the right side surface of the lower frame 2. Each configuration of the cover 90 will be described. The front guide unit 40 is composed of an upper frame 41 and a sensor board 47. The upper frame 41 is composed of a transfer wall 42, a mounting piece 43 and a side plate 44. The boss 43a arranged on the bottom surface of the mounting piece 43 is fitted into the mounting hole 13a, and the screw 45 is mounted on the mounting base 13. Mounted. At this time, the transport wall 42 and the transport wall 10 of the lower frame 2 form the card transport path 3. A positioning pin 42b and a mounting boss 42a are provided on the transfer wall 42, and an engaging hook 44a is provided on the side plate 44. The sensor board 47 is positioned on the upper frame 41 by the pin 42b and the hook 44a. And are attached with screws 48.

The transport unit 50 includes a drive motor 58, a transmission shaft 61 system, a transport belt 69, a magnetic head 70, and a bracket 51 that integrally mounts these. The bracket 51 is composed of a pair of side plates 52 and 53 and a spacing plate 54 having a U-shaped cross section, a pair of mounting plates 55 and 56, and a motor mounting plate 57 formed by bending the side plate 53 at a right angle. One side plate 52 is provided with a key-shaped bearing groove 52a and a support hole 52b, and the other side plate 53 is provided with a bearing hole 53a facing the bearing hole 52a. Further, the side plate 53 is provided with a mounting hole 53b and a positioning long hole 53c. The mounting plate 55 is provided with a mounting hole 55a and a slotted positioning slot 55b. The other mounting plate 56 is provided with a mounting hole (not shown) and a perfect circular positioning hole 56b.

The drive motor 58 is a motor that rotates in forward and reverse directions. A worm 60 is attached to the output shaft 59, and is fixed to the attachment plate 57 of the bracket 51 with a screw 61. On the transmission shaft 61, a war wheel 62 meshing with the worm 60, a touch roller 64, and a drive roller 65 are attached so as to rotate integrally with the transmission shaft 61. The transmission shaft 61 is rotatably supported by the bearing holes 52a and 53a via a bearing 63, and is prevented from slipping off in the axial direction by an E ring 66b via a washer 66a. The transport roller 68 is rotatably supported by a stepped shaft 67 attached to the support hole 52b of the side plate 52. A conveyor belt 69 is stretched around the drive roller 65 and the conveyor roller 68.

The head substrate 71 is attached, and the magnetic head 70 is attached to the bracket 51 via a head bracket 72. Then, the transport unit 50 inserts the elongated holes 55b of the mounting plate 55 and the holes 56b into the protrusions 33 of the mounting table 32 of the lower frame 2 for positioning, and is attached to the mounting table 32 with screws 55c and 56c. . The rear upper frame 80 includes a transport wall 81 and a mounting piece 82, and the mounting piece 82 is provided with a positioning boss 83 having a positioning hole 83a. In the rear upper frame 80, the hole 83a is positioned in the positioning pin 39, and the mounting piece 82 is mounted on the card guide wall 15 to form the transport path 3 with both the transport walls 10 and 81. . At this time, the rear upper frame 80 is in contact with the lower frame 2 on the card guide wall 15. The rear upper frame 80 and the front upper frame 41 are made of a synthetic resin containing the same antistatic material as the lower frame 2 described above.

Reference numeral 85 denotes an interface board (hereinafter referred to as an IF board) for exchanging control signals and the like between the present apparatus and an external apparatus, which is provided with a mounting screw hole 86 and a cover 90 described later. A large-diameter insertion hole 87 through which the screw 92 is inserted is provided, and the screw 88 is attached to the boss 38. The cover 90 covers the opening of the lower frame 2 to prevent dust and the like from entering the inside of the device and also to guarantee the internal parts in terms of strength. The cover 90 is provided with ribs 93 projecting at positions corresponding to the screw holes 91 and the later-described punch residue guide groove 115. The cover 90 is attached to the boss 37 with a screw 92 to close the opening on the right side surface of the lower frame 2. At this time, the cover 90 comes into contact with the lower frame 2 via the boss 37.

Next, mainly based on FIG. 2, a shutter mechanism 100 attached to the left side surface of the lower frame 2, an input port cover 105, a punch residue discharge mechanism 110, a punch residue storage case 120, a driven roller 130, The pressing spring 135, the wiring board 140, and the cover 145 will be described. When the shutter mechanism 100 is actuated, a pin (not shown) projects into the card transport path 3 from the through hole 12 to prevent insertion of the second and subsequent cards. The shutter mechanism 100 is attached to the boss 21 with a screw 102 through an attachment hole 101a provided in the attachment portion 101. The input port cover 105 is composed of a front face portion 106, a side face portion 107, and a boss 108 formed to project on the side face portion. The boss 108 is inserted into the mounting port 13b, and the card is conveyed by the front guide unit 40 described above. It is fixed by screws 45 so as to sandwich the wall 10.

The punch unit 110 and the punch residue storage case 120 constitute a punch residue discharging mechanism, and the detailed configuration thereof will be described with reference to FIG. The punch unit 110 is composed of an electromagnetic solenoid 111, a plunger 112, a punch pin 113 and a punch base 114. The punch pin 113 is housed in the punch mechanism housing section 22 as it faces the card transport path 3 from the through hole 23. It is fixed. The punch base 114 is provided with a punch hole 114a, and when the electromagnetic solenoid 111 is energized, the plunger 112 is actuated to cause the pin 113 to project into the card transport path 3 to form a small hole in the card 5.

In the lower frame 2 to which the punch unit 110 is attached, a punch residue guide groove 115 is provided on the back surface of the punch hole 114a of the punch base 114, and the guide groove 115 and the punch hole 114a are through holes 116. Is communicated with. Below the guide groove 115, a pocket 125 formed integrally with the lower frame 2 is provided, and the pocket 125 and the guide groove 115 are communicated with each other through a drop opening 117. A notch 126 is provided on the lower end surface of the pocket 125. When the cover 90 is put on the lower frame 2, the rib 93 of the cover 90 fits into the opening of the guide groove 115 to seal the guide groove 115.

The punch residue storage case 120 has an outer shape substantially the same as that of the pocket 125, and has an opening 121 on the upper end surface and a flat tab 122 on the back surface. The opening edge of the opening 121 is chamfered 121a, and the rear end edge of the knob 122 is formed with a bulging portion 122a having a semicircular cross section, which functions as a finger catch when gripping the knob 122. . At the center of the bottom surface of the punch residue storage case 120, a substantially dogleg-shaped elastic engaging piece 123 which is inclined downward and engages with the notch 126 is formed.

Reference numeral 130 denotes a pair of driven rollers, which are press-fitted and fixed to the shaft 132, and the shaft 132 is rotatably supported by the restricting protrusions 24 and 25, so that the driven roller 130 moves from the window 16 to the inside of the card conveyance path 3. Facing the drive rollers 65 and 68. The presser spring 135 is entirely formed of a thin plate spring material, and is composed of a base 136 and an arm 137. The pressing spring 135 has the base 136 mounted on the mounting projection 27, and is attached to the boss 26 with the screw 138, whereby the arm 137 presses the shaft 132, whereby the driven roller 130 causes the conveyor belt 69. Is pressed against.

Reference numeral 140 denotes a main board of the apparatus, which is attached to the boss 38 with a screw 141. Reference numeral 145 is a metal cover, which is attached to the boss 37 by a screw 146 and closes the opening on the left side surface of the lower frame 2. At this time, the cover 145 makes contact with the lower frame 2 via the boss 37, and the bent portion 145a makes surface contact with the surrounding wall 30. The card reader device configured as described above is built in a main body device (not shown) to which the card reader device is attached. At this time, the main body device is provided with a conductor member that comes into contact with the covers 90 and 145, and this conductor member is installed and grounded.

In such a configuration, the operation will be described below mainly based on FIGS. 3 and 4. When the card 5 is inserted through the card insertion / return port 11, the detection mechanism (not shown) detects the inserted card and operates the drive motor 58. Therefore, the card 5 whose tip reaches the conveyor belt 69 is taken into the apparatus. At this time, the shutter mechanism 100 operates to prevent the pin from protruding from the through hole 12 into the card transport path 3 and inserting the second and subsequent cards. The magnetic head 70 reads the card frequency of the taken-in card 5. Next, the card frequency is rewritten by the magnetic head 70 according to the frequency of use of the device. When the rewriting of the frequency is completed, the drive motor 58 is rotated in the reverse direction, and the card 5 is conveyed by the conveying belt 69 from the inside of the apparatus in the returning direction.

At this time, the card 5 that reciprocates in the card transport path 3 slides on the card transport walls 10, 42, 81, but with the lower frame 2 constituting these card transport walls 10, 42, 81. Since both upper frames 41 and 80 are made of synthetic resin mixed with an antistatic member, generation of static electricity is suppressed. In addition, before the card 5 is inserted through the card insertion / return opening 11, if the card 5 itself already has static electricity and is taken into the card transport path 3, the static electricity will be generated. And 80 to the lower frame 2 and from the lower frame 2 to the metallic covers 90 and 145, and the conductors in the main body of the device where the covers 90 and 145 are in contact are grounded to the outside to prevent static electricity in the card reader device. Will not stay.

As described above, since static electricity does not stay in the card reader device, runaway or damage of the circuit can be prevented. In this embodiment, the lower frame 2 constituting the card carrying walls 10, 42, 81 and the synthetic resin forming the upper frames 41, 80 are mixed with the antistatic member, but the present invention is not limited to this. It goes without saying that the same effect can be obtained by applying an antistatic material to the surfaces of the card transport walls 10, 42 and 81 on which the 5 directly slides. Further, in this embodiment, the front upper case 41 is brought into contact with the lower case 2 so that the static electricity accumulated in the front upper case 41 is caused to flow to the cover 145 via the lower case 2. It goes without saying that the cover 90 may be brought into contact with the front upper case 41 so that the cover 90 flows.

[0027]

[Effect of device]

 As described above, according to the present invention, one frame is provided with a card carrying wall and a pair of card guide walls standing upright at both ends of the card carrying wall, and the other frame is provided with a card carrying wall. These two frames are united to form a card transport path that slides and transports the card between the card transport walls, and both frames are made of synthetic resin with at least the surface where the cards come into contact with antistatic treatment. Since the cover that covers both of these frames is made of metal, the generation of static electricity is suppressed even when the card transport wall slides against the card, and the card that is previously charged with static electricity is used to transport the card. Even if static electricity is taken into the road, static electricity is discharged from the cover to the outside of the card reader device and does not stay inside. It does not require any additional parts, cost is prevented, and it becomes possible to reduce the thickness of the device.

[Brief description of drawings]

FIG. 1 is an exploded perspective view of a front side of a card reader / writer device according to the present invention.

FIG. 2 is an exploded perspective view of the back side of the card reader / writer device according to the present invention.

FIG. 3 is a plan sectional view of a card reader / writer device according to the present invention.

4 is a sectional view taken along line IV-IV in FIG.

5 is a sectional view taken along line VV of FIG.

[Explanation of symbols] 2 Lower frame 3 Card transport path 5 Card 10 Card transport wall 11 Card insertion and return slot 41 Front upper frame 50 Transport unit 69 Transport belt 80 Rear upper frame 90 Cover 100 Shutter mechanism 110 Punch unit 115 Punch residue Guide groove 120 Punch residue storage case 123 Elastic engagement piece 124 Elastic engagement piece 125 Pocket 126 Notch 145 Cover

Claims (1)

[Scope of utility model registration request] 1. A card carrying wall and a pair of card guide walls standing upright at both ends of the card carrying wall are provided on one frame, and a card carrying wall is provided on the other frame. A card transport path for slidingly transporting the card is formed between both card transport walls, and both frames are formed of a synthetic resin having at least a surface on which the cards come into contact with antistatic treatment and cover both frames A card reader / writer device characterized by being formed of metal.